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Show transcribed image text The following figure show two cure cycles and the corresponding viscosity-time curves for an epoxy-based prepreg. Which of these two cure cycles is expected to produce better and more uniform mechanical properties, and why?
Helium enters subsonically and flows isentropically through the converging-diverging duct. Compare the values of Ma, T/T0, and P/P0 for helium with those for air at several locations in the duct. Use 0.163 ≤ Ma ≤ 3.221.
a pneumatic accumulator arranged to maintain a constant pressure as air enters3 or leaves it is set for 200 psia.
An air-standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes: Isentropic compression from 100 kPa and 27 degrees C to 1.11 MPa. P = constant heat addition in amount of 3,020 kJ/kg
In addition, there is an equivalent constant inward radial force of 80N acting on each revolving mass in order to allow for the dead weight of mechanism - find the range of speed of the gonernor.
a flow of 30.5 kgmin of water from a hot water tank at 51oc is mixed with a 29.1 kgmin flow of 20oc water. determine
A 3-Litre vessel contains gas at a pressure of 200 kPa. Five litres of gas at the same pressure is forced into the vessel. Calculate the new pressure of the gas. Use V1 = 8L, V2 = 3L
Water initially exists as a saturated liquid at 186oC is contained in a piston-cylinder assembly. The water undergoes a process to the corresponding saturated vapor state, during which the piston moves freely in the cylinder. There is no heat transfe..
What is the value of the absolute Mach number M1?
a current of 4 a is maintained in a single circular loop having a circumference of 80 cm. an external magnetic fiel of
consider laminar parallel flow past an isothermal flat plate of length l providing an average heat transfer coefficient
Make a copy of the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition (Figure 10.22) and then sketch and label time-temperature paths on this diagram to produce the following microstructures:
a 2 cm ice cube sits on a shelf of widely spaced aluminum rods 3mm in diameter in a refrigerator at 10oc. how rapidly
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